In 1962, the futuristic family TV cartoon program “The Jetsons” (set in 2062, 100 years in the future) accurately predicted many of the technologies we use today. George Jetson and his family used ...

It looks innocent enough—a circular disk that hums around, picking up dirt and dust on your living room floor. It’s an iconic, boring slice of Americana at this point. But it’s not just a smart vacuum ...